Elevating pivot fixture



y c. n. TAB OR. ELEVATING P IVOT FIXTURE. APPLICATION FILED APR. 24, 1920.

1,431,060, Patented Oct. 3, 1922.

3 SHEETS-SHEET l.

i r P 1A3LO60.

c. D. TABOH.

ELEVATING PIVOT HXTURE.

APPLICATION FILED APR. 24, 1920.

Patented Oct; 3, 1922.

3 SHEETS-SHEET 2.

G. D. TABOR. ELEVATING PIVOT FIXTURE. APPLICATION FILED, APR. 24, I920.

Patented Oct. 3, 1922.,

a $HEETS'SHEET 3.

. Fixtures, of

Patented (Slot. 3, ll@22 all in i iiw a a CLINTON D. TAHOE, 9F HUNTINGTON. NEW r'LSSIG'IiTOR 0F OITEsHALF TO HERMAN I.

soannsnn, on NEW noun,

ELEVATING PIVOT FIIIQTUBE.

Application filed April 24, 1920.

To all whom it man concern Be it known that I, Crlrnron Du Tacos, a citizen of the United States, residing at Huntington, in the county of Suffolk and State of New York, have invented new and useful Improvements in Elevating Pivot which the following isa specification.

This invention relates to an elevating pivot fixture which is more particularly designed for use on windows in which the sash is moved vertically for interlocking the same with and unlocking the same from the sill or stool of the frame and also rotating said sash about a vertical axis for opening and closing the same.

The objects of this invention are to pro vide a fixture of this character which is simple in construction easily assembled and also dismembered, not liable to get out of order and contains few parts which are arranged compactly and require less cutting away of the wooden sashes and frames for mounting the fixture on the window.

In the accompanying drawings: Figure 1 is a'fragmentary inside elevation of a window frame and sash equipped with my improved elevating pivot fixture. Figures 2 and 3 are vertical longitudinal sections taken 011 line 23, F 6, looking outwardly and inwardly respectively. Figure 4 is a horizontal section taken on line l-L Fig. 3. Figures 5, 6 and 7 are vertical sections taken on the correspondingly numbered lines in Figs. 2 and 41-. Figures 8, 9 10, 11, 12, 13 and 14 are detached perspective views of different parts of the elevating pivot fixture.

Similar characters of reference indicate corresponding parts throughout the several views 20 represents the lower horizontal sill or stool of the window frame and 21 the lower horizontal bar of the sash which are adapted to be interlocked with and also unlocked from each other upon moving the sash vertically. this locking effect being attained by a longitudinal rib 22 arranged on the upper side of the sill and engaging with a longitudinal groove 23 on the underside of said sash bar.

Within a recess 24 in the top of the sill is arranged a sill plate 25 which may be secured thereto by screws 26. On its upper side this sill plate is provided with a rib27 preferably made of front 28, 82 having a continuation of the rib on On the underside of the lower sash is provided with a sash plate and rear sections a groove 29 on its underside which is in line with the sash bar groove 23 and whlch receives the rib of the sill plate when the sash lowered. On tion 28 of the may be secur screws 31.

is parallel with the frame and its front edge the front secsash plate is provided w th an face plate 30 which ed to the lower sash bar b Above the sash plate and be hind theface plate the lower sash bar is pro vided with a of the means recess 82 which receives part for raising and lowering the sash and pivotally connecting the same with the frame, said means being constructed as follows 33 represents a vertical p vot circular onepiece pin journaled in a sill plate and bearing in the connected at its upper en with an upright guide block or SitiZHlflT-Tl having a downwardly facing shoulder 36 which engages with sill plate. This pivot the upper side of the pin s held against upward movement by providing the lower part of the pivot pin with an annular groove forming an upwardly-facing annular shoulder 37 thereon and providing the underside of the sill pla lips 38 which pin and. engage their lower shoulder as Prior to a plates, shown in F to be introduced into the the upper end shown in Figs.

the retaining lips 38 are left apart, as

the pivot pin 33 bearing 34 from the latter until the upper 14, to permit shoulder 36 engages with the upper end of the bearing and the lower shoulder 37 1s arranged below the bearin after which the lips are bent inwardly by a suitable tool until their lower ends shoulder which faces the bearing, securely coupling disengagement without against engage with the lower thereby sash plates employing the sill and any separate parts which would involve possibl e loss and increased cost.

The pivot pin 33 and guide block 35 are so mountedon the sash capable of rising and that the latter is falling independently of thepivot pin and guide block but these parts are compelled this purpose to turn together. For the sash plate is preferably divided into front and rear longitudinal sections 28, 82, which are arranged side by side and two bosses 40, 41 are formed on the upper sides of these sash plate sections, respectively, which have their opposing sides constructed to form between them a guide way 42 of rectangular form in horizontal section which slidingly receives the guide block of corresponding rectangular form in horizontal section. The two sash plate sections and guide bosses are detachably connected with each other by screws as arranged in said bosses, as shown in Figs. 3 and 4.

Means are mounted on the face plate of the sill plate which are operatively connected with the guide block for raising and lowering the sash relatively to the sill of the frame. The means for this purpose shown in the drawings, are constructed as follows:

39 represents a circular bearing formed in the rear face of the front boss d0 with its axis arranged horizontally and transversely of the sash plate and er an opening arranged axially in line with said bearing and in the bottom thereof which is formed by the face plate 30. Within this hearing 39' is journaled a rotary tumbler 4L5 the inner or rear face of which is preferably flush with the ear face of the boss while its front face engages the bottom of the bearing 39 and is provided with a hub 46 which projects forwardly through the face plate opening 44. The tumbler is turned by means of a crank, lever or handle 47 arranged in the front of the face plate 30 and provided with a rearwardly projecting square shank 48 at its inner end which is secured axially in a correspondingly-shaped opening 49 in the tumbler by a radial coupling pin 50. For the purpose of enabling this device to be built compactly and still enable the pin 50 to be applied to the tumbler and crank for connecting the same as well as dismembering the same when required, the central part of the rear side of the tumbler is left full, as shown at 51, to provide the necessary stock in which to form the openings 52 for the coupling pin 50. but those parts of the rear side of the tumbler extending from the openings 52 to the periphery of the tumbler are cut away, as shown at 53, to form recesses or passages through which the coupling pin ispassed when inserting or removing the same. For a similar reason the lower part of the front boss 40 and the adjacent inner edge of the front sill plate section are cut away to form a recess 54: through which the coupling pin 50 may be passed when as sembling or dismembering the parts.

The tumbler and the guide block are operatively connected so that upon rocking the tumbler the sash will rise and fall. The imroved means for this purpose comprise a shuttle block 55 which reciprocates in a bearing adjacent one end an enlarged shoulder engaging said horizontal groove 56 formed in the upper part of the front side of the guide block, and is eccentrically connected with the tumbler by means of a circular crank pin 57 engaging a circular opening 58 in the rear side of the tumbler on one side of its center an provided with a reduced shank 59 which is riveted in an opening in the shuttle block.

Upon turning the tumbler by means of the crank handle, the crank pin 57 moves the shuttle block bodily and thereby causes the sash and associated parts to rise or fall on account of the thrust exerted by the shuttle block on the guide block, as the former slides in the groove of the latter.

By this means motion is transmitted to the sash for raising or lowering the same with a minimum of friction and in such manner that the sash can be operated easily and with a practically uniform action throughout the entire range of throw of the hand lever. 1

I claim as my invention:

1. A pivot fixture for windows comprising a one piece bearing, and a pivot pin provided at one end with a wide part turning in contact with the bore of said bearing and an enlarged shoulder engaging said of said bore, while the other end of said pin is provided with a narrow part and a second shoulder which faces toward said enlarged shoulder and said bearing being provided at the other end of said bore with an integral lip which engages the second shoulder.

2. A pivot fixture for windows comprising a one piece bearing, and a pivot pin provided at one end with a wide part turning in contact wth the bore of said bearing and bearing adjacent one end of said bore, while the other end of said pin is provided with a narrow part and a second shoulder which faces toward said enlarged shoulder, and

said bearing being provided at the other end of said bore with an integral lip which engages the second shoulder and with said narrow part of the pin.

3. A pivot fixture comprising a sill plate adapted to be attached to a sill and provided with a bearing, a sash plate adapted to be secured to a sash and divided into sections which have bosses adapted to form between them a guide way when said sections are placed together, and a pivot pin turning in said bearing and having a guide block which slides in said guideway but is compelled to turn therewith.

4:. A pivot fixture comprising a sill plate adapted to be attached to a sill and provided with a bearing, a sash plate adapted to be secured to a sash and divided into sections which have bosses adapted to form between them a guideway when said sections are placed together, a pivot pin turning in said bearing and having a guide block which slides in said guideway but is compelled to turn therewith, screws connecting said bosses, and means mounted on said sash plate and operatively connected with said guide block for raising and lowering the sash relatively to the sill.

5. A pivot fixture comprising a sill plate, a sash plate, a pivot rotatable on the sill plate and slidable on the sash plate, a rotary tumbler operatively connected with said pivot and provided with a central opening, a bearing on said sash plate for said tumbler, a crank provided with a rearwardly pr0; jecting shank disposed in said opening, said tumbler being provided with transverse openings communicating with said central opening and with radial recesses extending to the periphery of the tumbler, and a coupling pin inserted through said recesses and openings and securing the tumbler to said shank.

6. A pivot fixture comprising a sill plate, a sash plate, a pivot rotatable on the sill plate and slidable on the sash plate, a rotary tumbler operatively connected with said pivot and provided with a central opening, a bearing on said sash plate for said tumbler, a crank provided with a rearwardl'y projecting shank disposed in said opening, said tumbler being provided with transverse openings communicating with said central opening and with radial recesses extending to the periphery of the tumbler, and a coupling pin in serted through said recesses and openings and securing the tumbler to said shank and said sash plate being provided with a recess which is adapted to register with the recesses in said tumbler and provide a passage for said coupling pin.

7. ii. pivot fixture comprising a sill plate provided with a vertical bearing, a sash plate provided with a horizontal bearing, an upright pivot pin journaled in the bearing of the sill plate and provided with a block which is guided on the sash plate and provided with a horizontal groove, a rocking tumbler journaled in the bearing of the sashv plate, a shuttle block sliding in said groove and pivotally connected with said tumbler on one side of the axis of the latter and means for rocking the tumbler.

8. A pivot fixture comprising a sill plat-e provided with a vertical bearing, a sash plate provided with a horizontal bearing, an upright pivot pin journaled in the bearing of the sill plate and provided with a block which is guided on the sash plate and pro vided with a horizontal groove, a rocking tumbler journaled in the bearing of the sash plate, a shuttle block sliding in said groove, a pin mounted on said shuttle block and engaging with a pivot recess formed on said tumble-r on one side of the axis of the latter and means for rocking the tumbler.

CLINTON D. TAB'OR. 

